Demo site http://launchreactjs.businesscatalyst.com/ no longer accesssible

I was going through Training Tutorial https://experienceleague.adobe.com/docs/analytics-learn/tutorials/implementation/spa-pages/using-best-practices-when-tracking-spa.html?lang=en# which has the video explaining SPA. The video shows the url http://launchreactjs.businesscatalyst.com/ but the url is no longer accessible. Here is the screenshot of video

Open the linked Training Tutorial and verify that the demo URL is still referenced and inaccessible. Find the corresponding source page in this repository; done means the tutorial no longer directs readers to the unavailable demo, with the updated reference or removal confirmed.

Written by the indexing model from the issue text.